The SJ-3541-1X50YD-BLACK is a 3M™ Dual Lock™ reclosable fastener designed for strong, reliable fastening in indoor applications. This black fastener features a high stem density of 400 mushroom-shaped heads per square inch and is backed with a rubber-based pressure-sensitive adhesive. It has an engaged thickness of 0.23 inches and a maximum temperature resistance of 120°F (49°C). The adhesive provides good bonding to various substrates including metals, glass, many plastics, and powder-coated paints, making it suitable for aerospace, electronics, general industrial, and display applications.